Condition Monitoring状态检测

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1、WindpowerConditionMonitoringConditionMonitoringSystems(CMS)inwindturbinesCMSAuthors:MartinKlugeMichaelDanitschek©ifmelectronicgmbhupdate:22.07.2010page1WindpowerConditionMonitoringIntelligentvibrationmonitoringofwindturbinesTargetsPermanentplant/syst

2、emprotectionCMSReductionofmaintenancecostsIncreasedavailabilityduetopermanentonlinemonitoringPlanningofrepairCauseanalysisbydocumentingdamageeventsAvoidanceofunplannedproductiondowntimesCondition-basedmaintenancetoDIN31051"Fundamentalsofmaintenan

3、ce"©ifmelectronicgmbhupdate:22.07.2010page2WindpowerConditionMonitoringMonitoringpossibilitiesonwindturbinesRotorblades(safety)Drivetrain(diagnosis)Motorsandpumps(diagnosis)Towervibrations(safety)©ifmelectronicgmbhupdate:22.07.2010page3WindpowerConditi

4、onMonitoringPossiblefailuresonwindturbinesAsstatedbytheinsurerGermanLloydMechanicalComponentFailurePercentageMainGearbox32%Generator23%MainBearing11%RotorBlades*<10%*Bladeresonancesleadtofatiguefailures©ifmelectronicgmbhupdate:22.07.2010page4Windpower

5、ConditionMonitoringSavingpotentialusingtheexampleofagearboxonawindturbineCostfactorsofagearbox:Anewgearboxcostsapprox.160,000€Thedeliverytimeforanewgearboxisapprox.6monthsAmobilecranecausingthefollowingcostsisneededtoreplacethegearboxTransportofth

6、ecranetothewindturbine:approx.30,000€Dailyusercosts:4,000€CostadvantageswhenusingConditionMonitoringSystems:DamagecanbedetectedingoodtimeRepaircostsareconsiderablylowerthanreplacementcostsRepairsonthenacellecanbecarriedoutatanearlystage.©ifmelectr

7、onicgmbhupdate:22.07.2010page5WindpowerConditionMonitoringPossibleapplicationsofConditionMonitoringSystemsGearboxGenerator/networkcoupling•Wear,breakinteeth•Windingdamage•Displacement,eccentricityoftoothedwheels•Rotorasymmetries,barbreak•OverheatingRot

8、or•Fatigue,crackformation•Bladeadjustmenterror•Damages(e.g.vialightningstrike)Bearings,shaftsNacelleadjustment•Wear,defectsofbearingshellsandrollingelementsTowervibration•Yawerror(drive&motor)•Fatigue,crackformationin•Monitoringofthe•Sy